Thomas sheehan



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IMPROVED COMPOSITION FOR CONVERTING IRON INTO STEEL.

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TO ALL WHOM IT MAY CONCERN:-

Be it known that I, THOMAS SHEEIIAN, of Dunkirk, in the State of New York, have invented or disc'oy'cred a certain new and useful improvement in the Preparation of a Composition for Converting Wrought Iron int-o Steel; and I do hereby declare that the description given in my former patent, dated September 4, I850, and numbered 29,919, set-ting forth the ingredients used, and the proportions thereof, is clear and explicit.

My inventiorLor discovery now consists in the saturation of the liquid composition described in my for-men patent witlrcarbonie acid gas. i q

The manner in which I prefer to do this is as follows: During the time that the gas-is passing from the retort into the barrel of liquid, I take about three gallons of lye, and pour it, in a small stream, into said barrel,

thus enabling the gas to be more thoroughly absorbed by theagitation of the liquid composition.

I would here observe that the advantages arising from the saturation of the liquid onr'position with can bonic acid gas'are 'as*follo\vs: I i

Instead of using the quantity of lye mentioned ill-my old patent, I use only three gallons in the way just referred to, and thirty-eight (38) gallons of pure water, for making forty-four (44) gallons of the composition, which, in consequence thereof, is made much cheaper, and answers the purpose just as well as when a greater quantity of lye'and no water was used." I

I would observe further that the'residue which remains in the box, (see former patent,) after hardening a hatch of work, I save and mix with fresh colnpositioin when it is again as goodns 'before.

What I claim, and desire to secure by Letters Patent, is-

The saturation of the liquid composition describcd in my former patent with carbonic acid gas, substantially for the purpose set forth.

In testimony whereof rilerewith aflix my signature in presence of two witnesses.

THOMAS SHEEHAN.

Witnesses:

Wm. BOOKSTAVER, F. F. Dmeos. 

